Mold.



W. BINNING.

MOLD.

- APPLICATION FILED IEB.23, 1911.

1,030,638. Patented June 25, 1912.

awe/MM 'nrainn sirarns 'ATENTT OFFICE.

WOOD BINNIN G, OF GRAND RIVER, IOWA.

MOLD.

Specification of Letters'Patent.

Patented June 25, 1912.

Application filed February 23, 1911. Serial No. 610,281.

To all whom it may concern material.

A further object of my invention is the provision of an improved moldfor forming curved blocks which shall be of such construction that themold when filled may be readily moved from the filling and tamping tableto the sand in which the block is placed to set or harden.

Another object of my invention is the provision of an improved moldcomprising but two sections so connected as to permit of the readyforming of a curved block therein and to permit of the ready removal ofthe block without breaking down or injuring the shape or edges thereofand a mold which while cheap of construction will have its inner face ofmaterial to which ithe plastic filling of the mold will not adiere.

Other objects and advantages of my improved mold will be apparent fromthe following description taken in connection with the drawings, and itwill be understood that I may make any changes or modifications in thespecific structure shown and described within the scope of the claimwithout departing from or exceeding the spirit of the invention.

Figure 1 represents a top plan view of my mold in closed position. Fig.2 represents a top plan view thereof in opened position. Fig. 3represents a cross sectional view on the line 33 of Fig. 1, and Fig. 4represents a perspective view of the mold.

In the drawings, the numeral 1 designates the outer curved wall of mymold and the numeral 2 designates the inner curved wooden wall thereof,the curved walls 1 and 2 being in the form of concentric arcs, and thewall 1 has secured thereto the end section 3 of the mold, said endsection being in the form of a section of the radius of the arcs of thesections 1 and 2 and extending inward into alinement with the outer faceof the inner section, the outer face of the section 1 being convex andthe outer section of the section 2 being concave.

Formed on the end of and extending radially outward from the oppositeend of the section 2 from that with which the section 3 contacts is thewooden end section 4 which extends to the outer face of the section 1,as most clearly shown in Fig. 1.

To connect the two sections of the molds together to insure their at alltimes being in correct relative position I secure to the end 3 and tothe adjacent portion of the section 2 the hinge 5 for pivotallyconnecting the same in such manner that as the mold is opened theportions 1 and 2 so separate from each other that the sections 3 and 1are also swung away from the mold without dragging along thereagainst,the block therefor being satisfactorily removed without damage. Tosecure the sections together I pivot to the section 1 the hasp 6 adaptedto pass over and be secured to the staple 7 to lock the mold in closedposition.

To facilitate the removal of the block from the mold and prevent theblock from sticking to the mold I have provided the various members withthe facing plates 8 of galvanized iron which extend across the face ofthe mold and have their edges 9 clampingly bent down upon the wood ofthe mold to secure said facing plates 8- thereto.

From the foregoing description taken in connection with the drawings itwill be seen that I have provided a simple, inexpensive and durable moldwhich can be readily disengaged from the block and which is providedwith a casing plate of material to which the plastic filling of the moldwill not adhere.

I claim:

A mold for concrete blocks, comprising a pair of concentrically curvedwooden frame members, aradially inwardly projecting wooden end membersecured to the outer curved frame member, a hinge member having one endsecured to said end section and the other to the adjacent end of theinner curved frame member for pivotally connecting the same, a radiallyoutwardly extending Wood end section fixedly secured to the free end ofthe inner frame'member, a latch member carried by the outer frame memberfor engaging the latter end section to' lock the outer frame memberthereto; andgalvanized iron face plates, said plates having angularflanges clampingly engaging all of the Wooden members upon the opposingfaces to secure the face plates thereto. In testimony whereof I aflix mysignature, in the presence of two Witnesses.

'WOOD BINNING. Vitnesses:

L. J. LANDEs, J. C. BROSFURS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner oflatents,

" Washington, D. 0.

